Those are the right sizes but you can go a bit more narrow and that will help with any rub cause it will stretch the tire across. And it would be a mild stretch that would be for a purpose and it shouldnt effect driving, maybe if you went like 225 or something but oh well maybe you can pull the fenders a bit. You shouldnt need much, it wont do anything unless you lower it and put a ton of crap in the back seats and trunk.
If you could have found a 30 series profile, that would have done good. But that will definitly make for a hard ride and you would not be raceing around at all, just cruising.